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  #41  
Old 12-10-2007, 05:33 AM
Neon Flea Neon Flea is offline
 
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yikes. em, lets see.
best way to debug is to make the system as simple as possible.
try the forward and back channels without any cable split at the soundcard. are they still as bad as each other?
If so does the output of the soundcard sound shit? try headphones,
Try a diskman/mp3 player on the amp too.
Are the speakers wired in phase with each other? if the wireing gets a cross over by mistake from the amp red/black to the speaker red/black connectors then you'll get all sorts of cancellation.

What kind of amp is it?
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  #42  
Old 12-10-2007, 05:53 AM
Beaty Beaty is offline
 
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try the forward and back channels without any cable split at the soundcard.

DIDNT GET ANY SPLIT CABLE. SINGLE HEADPHONE JACK TO PHONO

are they still as bad as each other?

N/A

If so does the output of the soundcard sound shit? try headphones,
Try a diskman/mp3 player on the amp too.

HAVE AN MP3 ON THE WAY! - EDIT - JUST TESTED WITH MP3 PLAYER - SOUND IS WORSE

Are the speakers wired in phase with each other?

RED - RED - BLACK TO BLACK ALL THE WAY!

What kind of amp is it

MARANTZ PM 4001

B

Last edited by Beaty; 12-10-2007 at 09:41 AM..
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  #43  
Old 12-10-2007, 01:53 PM
DJ Smithy DJ Smithy is offline
 
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Heres the amp in question:

http://www.marantz.com/new/index.cfm...f&prod_id=3519



Owners Manual

Product Information Sheet


Im assuming you have the RCA Cable connected to Aux/DVD.
If not do it.


How long is the RCA Cable?

The shorter it is the better the sound quality.
Long cables can pick up a lot of interference.



--------------------------------------------------------
@Neon

The RMS value in the manual claims to be 40/55w @ 8Ω/4Ω.

Thats about 10/13 watts per channel right?
Since there are 4 channels.


The speakers as he stated earlier are rated 50W each and are compatible with amps that have 10-100 Watts per channel.

So they trully need 100 watts each to reach their full potentional.
100w being the max value right? and 50 being the RMS?

I think the amp isnt powerful enough, a 200-400w RMS amp is what would be perfect i think.

Thats if it had 4 outputs like the marantz.
Otherwise youre looking at 2 100w-200w stereo amps.
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  #44  
Old 12-10-2007, 10:11 PM
Beaty Beaty is offline
 
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Lads - it's all sorted! I now have BOSE crispness in the office.

Can you guess what the problem was?

You'll kick yourselves? (and it wasnt anything loose or mis-wired)

B
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  #45  
Old 15-10-2007, 08:41 AM
Neon Flea Neon Flea is offline
 
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Quote:
Originally Posted by Beaty View Post
Lads - it's all sorted! I now have BOSE crispness in the office.

Can you guess what the problem was?

You'll kick yourselves? (and it wasnt anything loose or mis-wired)

B
mmmm. nothing loose or miswired...
em - was it connected to the Phono input? that would give some crappy attenuated sound crazyness. otherwise i haven't a clue!

Yeah, especially if the MP3 sounded even crappier. Phono/Record Player input so?

Good choice on a Marantz by the way - alot of your nice sound will be Marantz crispness as well as "Bose crispness" now.
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Last edited by Neon Flea; 15-10-2007 at 09:29 AM..
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  #46  
Old 15-10-2007, 09:26 AM
Neon Flea Neon Flea is offline
 
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Quote:
Originally Posted by DJ Smithy View Post
Heres the amp in question:

http://www.marantz.com/new/index.cfm...f&prod_id=3519




@Neon

The RMS value in the manual claims to be 40/55w @ 8Ω/4Ω.

Thats about 10/13 watts per channel right?
Since there are 4 channels.


The speakers as he stated earlier are rated 50W each and are compatible with amps that have 10-100 Watts per channel.

Nah - they'd normally quote the "Power per channel" - like in this case the Marantz is 55W per channel.
It would be rather misleading of them to sell a quad output amp than halves its output when you connect the second set of speakers - effectively making it no better than wiring the two speakers into the same channel!

The RMS quote is quite misleading though - strictly speaking the RMS should not be measured in Watts, but peak-to-peak voltage per given resistance.
Its nuts, and gets complicated to the point that i don't understand what they're talking about sometimes in spec sheets.

...Though in saying that, its not nearly as nuts as when they start quoting the PMPO (peak music power output) - which doesn't really seem to relate to anything in particular. Like for example, i have an old set of shittty computer speakers that say "380W" on them in nice 1980's computer writing. Of course they are no more 380W than i am myself. I think they had about 6W when i measured them (back when i gave a toss!). In this case the 380W probably meant how much power they could handle before they caught fire!
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  #47  
Old 15-10-2007, 04:51 PM
DJ Smithy DJ Smithy is offline
 
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10 watts per channel seemed a bit scanty alright i suppose! haha
Bastards with their poxy spec sheets.


Shes a nice amp all the same.

How much she set you back beaty?

Get yer ass back in here and tell us the answer!
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  #48  
Old 16-10-2007, 08:00 PM
Beaty Beaty is offline
 
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Quote:
Originally Posted by DJ Smithy View Post
10 watts per channel seemed a bit scanty alright i suppose! haha
Bastards with their poxy spec sheets.


Shes a nice amp all the same.

How much she set you back beaty?

Get yer ass back in here and tell us the answer!
Lol - sorry I've been listening to crisp sound for the last couple of days.

The sound was crap cos the CD player (on PC) was crap.

All was solved when I bought a Marantz CD player to compliment the Marantz Amp.

Crisper than Mr Kellog ever dreamed!

S
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